Should I run it on the main coolify server or just server?

[weeebdev]

I mean, can I migrate both coolify instance and coolify server, or is it made specifically for one type of them?

[zbcoding]

You run it on the server as an .sh script so you usually want ssh access.
If you're talking about the managed Coolify instance, can you access the terminal at the >_ Terminal link in the Coolify menu?